I'm Ahmed Ayub, a Senior iOS Engineer with 5+ years of hands-on experience designing, developing, and shipping high-quality, scalable iOS apps across e-commerce, AI-powered tools, IoT/smart home, EdTech, and marketplace platforms.

Deep expertise in Swift and UIKit, with growing proficiency in SwiftUI. I've led development pods, mentored engineers, conducted code reviews, and driven technical decisions aligned with product and business goals. I'm comfortable integrating complex third-party SDKs, REST/GraphQL APIs, and hardware protocols like Philips Hue.

📡 Open to remote iOS roles with USD compensation.

March 2024 – Present · Lahore, Pakistan (Hybrid)

• Lead the iOS development pod for ZenImmersive, a meditation and wellness app with immersive audio/video and Philips Hue smart lighting integration — end-to-end from architecture to App Store submission
• Architected a modular networking layer using async/await + Alamofire, reducing boilerplate by ~40% and improving error handling consistency
• Designed a complete StoreKit 2 IAP system supporting auto-renewable subscriptions, non-consumable products, receipt validation, and entitlement management
• Integrated Philips Hue v2 CLIP API: mDNS bridge discovery, user authentication, zone-based group management, and native lighting effects synchronized with session content
• Built a custom AVFoundation audio/video playback engine with background playback, lock screen controls via NowPlayingInfo, queue management, and streaming optimizations
• Implemented Sign in with Apple and Google Sign-In with Firebase backend — secure token management and seamless onboarding
• Mentored 2 junior iOS developers via code reviews, pair programming, and architecture discussions

January 2023 – March 2024 · Lahore, Pakistan

• Developed SolutionInn Study Help, an AI-powered EdTech app for scanning, searching, and asking academic questions via OCR and REST APIs — serving thousands of active users
• Built a recursive tree-structure architecture for textbook chapter navigation — efficient traversal of deeply nested content hierarchies
• Designed multi-type content layouts using UICollectionView embedded in UITableView for diverse data types (text, images, equations) in a single scrollable feed
• Integrated Apple VisionKit for OCR-based document scanning — photograph a textbook page, extract searchable text instantly
• Implemented UIApplicationShortcutItem for home screen quick actions, improving user engagement

October 2021 – January 2023 · Lahore, Pakistan

• Shipped multiple production apps across e-commerce, HRMS, and grocery delivery verticals with high App Store ratings
• Built Shahalami.pk — full-featured e-commerce app powered by Shopify APIs and GraphQL: product catalog, cart, checkout, and order tracking
• Developed EZfresh.pk — fresh produce delivery app with Shopify API integration and real-time inventory sync
• Built MyExD HRMS — internal HR app with attendance marking, employee-HR communication, and management dashboards
• Collaborated with backend engineers on API contracts, error handling with retry logic, and offline caching strategies

October 2020 – October 2021 · Lahore, Pakistan

• Developed and maintained 4+ iOS apps using Objective-C with XIB-based UI, building deep proficiency in legacy UIKit
• Built Main.st & Main.st Business — restaurant discovery and management suite with Apple Maps, location search, media galleries, and business profile management
• Developed MyTM Dukaan — ticket booking platform (bus, train, air, cinema) with Core Animation-rich UI transitions
• Built Nimat — UK-based meat e-commerce app with Stripe & PayPal payment gateways and multi-currency support
• Built Zozm — real-estate broker discovery app with radius-based Apple Maps search, Arabic/English localization, and dual list/map views

Meditation & Wellness · UIKit · HUBBLE42

A premium meditation and wellness app creating immersive relaxation experiences by synchronizing guided audio/video sessions with Philips Hue smart lighting in real time.

• 🏗 Architected full iOS client from scratch: modular networking (async/await + Alamofire), Firebase auth, StoreKit 2 subscriptions
• 💡 Philips Hue Bridge discovery via mDNS, CLIP v2 API auth, zone-based lighting effects synchronized to session mood
• 🎵 AVFoundation media player: streaming, background playback, lock screen controls, queue management
• 🌍 Localization (English/French), adaptive UI for iPhone & iPad, full App Store/TestFlight pipeline

Swift UIKit SwiftUI AVFoundation StoreKit 2 Philips Hue v2 API Firebase Alamofire Combine WLED

Marketplace · Swift · Production

An innovative marketplace connecting drivers with available private parking spaces — enabling property owners to monetize driveways and garages.

• 🔄 Real-time availability updates and in-app payment processing
• 🔔 Firebase push notifications for booking confirmations, Crashlytics for crash monitoring
• 👤 Scalable architecture supporting both driver and property owner user journeys

Swift Combine Firebase StoreKit REST APIs SPM

Productivity · Swift · Production

An AI-powered resume and cover letter builder using OpenAI's API to generate professional, tailored documents from user input.

• 🤖 OpenAI API integration for intelligent content generation
• 💰 Freemium model with in-app purchases and AdMob

Swift Firebase OpenAI API AdMob CocoaPods In-App Purchase

EdTech · Swift · Production

An EdTech platform for scanning textbook pages via OCR, searching academic questions, and receiving expert answers.

• 📷 VisionKit OCR integration for document scanning
• 🌳 Hierarchical chapter navigation with recursive tree-structure architecture

Swift VisionKit REST APIs Firebase CocoaPods

E-Commerce · Swift · Production

Full-featured e-commerce app integrated with Shopify backend — product discovery through checkout.

• 🛒 Shopify GraphQL + REST APIs: product catalogs, cart, checkout, order tracking, real-time inventory sync

Swift Shopify APIs GraphQL REST APIs CocoaPods

IoT · Swift · Production

An IoT companion app for a smart parcel security device with multi-compartment control (Normal, Hot, Cold) to prevent porch piracy.

• 📡 Remote compartment control, barcode scanning for deliveries, real-time device status via REST APIs
• 📞 Agora SDK integration for communication features

Swift REST APIs Agora SDK IoT CocoaPods

Bachelor of Science in Computer Science University of Management and Technology — Lahore, Pakistan · Graduated March 2020

• Teaching Assistant (TA) for Object-Oriented Programming (OOP) and Data Structures & Algorithms (DSA)

• 🌍 Remote iOS roles with USD compensation
• 🏗 Products where architecture decisions and engineering craft matter
• 📱 Teams that care about code quality, UX polish, and shipping reliably
• 🤝 Collaborative environments where iOS is a first-class citizen